EP 3097450 B1 20201007 - ELECTRO-OPTICAL MODULATOR WITH A VERTICAL CAPACITOR STRUCTURE
Title (en)
ELECTRO-OPTICAL MODULATOR WITH A VERTICAL CAPACITOR STRUCTURE
Title (de)
ELEKTROOPTISCHER MODULATOR MIT VERTIKALER KONDENSATORSTRUKTUR
Title (fr)
MODULATEUR ÉLECTRO-OPTIQUE DOTÉ D'UNE STRUCTURE DE CONDENSATEUR VERTICALE
Publication
Application
Priority
- US 201461931314 P 20140124
- US 2015012791 W 20150124
Abstract (en)
[origin: US2015212344A1] An optical modulator may include a lower waveguide, an upper waveguide, and a dielectric layer disposed therebetween. In one embodiment, the lower waveguide may include a u-shaped region within an optical mode of the light passing through the optical modulator. By conforming the dielectric layer to the surfaces of the u-shaped region, the amount of area of the dielectric layer within a charge modulation region is increased relative to forming the dielectric layer on a single plane. Folding the dielectric layer in this manner may improve modulation efficiency. In one embodiment, the u-shaped region is formed by using ridge structures that extend from an upper surface of the lower waveguide towards the upper waveguide. To aid in lateral confinement of the optical mode, the dielectric layer may be deposited on one side surface of the ridge structures while a different dielectric material is deposited on the opposite side surface.
IPC 8 full level
G02F 1/025 (2006.01)
CPC (source: EP US)
G02B 6/132 (2013.01 - US); G02B 6/136 (2013.01 - US); G02F 1/011 (2013.01 - EP US); G02F 1/025 (2013.01 - EP US); G02F 1/2257 (2013.01 - EP US); G02F 1/0152 (2021.01 - US); Y10S 977/834 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2015212344 A1 20150730; US 9360688 B2 20160607; CN 105934703 A 20160907; CN 105934703 B 20190903; CN 106133585 A 20161116; CN 106133585 B 20190510; EP 3097450 A1 20161130; EP 3097450 B1 20201007; EP 3097451 A1 20161130; EP 3097451 B1 20210721; US 10598967 B2 20200324; US 11226505 B2 20220118; US 11886056 B2 20240130; US 2015212386 A1 20150730; US 2016147087 A1 20160526; US 2016170240 A1 20160616; US 2017269393 A1 20170921; US 2020183198 A1 20200611; US 2022082875 A1 20220317; US 2024094567 A1 20240321; US 9310629 B2 20160412; US 9632335 B2 20170425; US 9766484 B2 20170919; WO 2015112814 A1 20150730; WO 2015112921 A1 20150730; WO 2015112922 A1 20150730
DOCDB simple family (application)
US 201414263389 A 20140428; CN 201580005455 A 20150124; CN 201580016125 A 20150123; EP 15703677 A 20150124; EP 15706304 A 20150123; US 201414248081 A 20140408; US 201414266397 A 20140430; US 2015012608 W 20150123; US 2015012791 W 20150124; US 2015012792 W 20150124; US 201615009483 A 20160128; US 201715615290 A 20170606; US 202016789317 A 20200212; US 202117456468 A 20211124; US 202318526985 A 20231201